Traffic in the New York area is unpredictable and JetBlack their are no "normal" conditions.
It could be either Kennedy International Airport or Newark International Airport that requires 40 minutes or more travel depending on where you start in Manhattan. The main part of the trip is maneuvering to get out of Manhattan and past the bridge or tunnel.
Even then there may be extended rush our traffic to deal with. Any other international airports such as Steward International Airport is definitely more than an hour away.
